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Yes, I am also debating if I should hold out for the Canon 8-15, which is supposed to be shipping the end of July, 2011 (according to Canon.co.uk): The big question for Nick: Do you have a lens ring available in 4 weeks? I personally wouldn't mind to have the ring cover the focus distance and the AF/MF switch (The plastic insert probably needs some depressions to go over the switches). or if that fails, could you post a list of inner diameters for all the R1 rings (or put them actually in the product descriptions), so users can pick the next best: making a plastic inner ring isn't difficult, the nice fitting outer aluminium is difficult.

The big question for Nick: Do you have a lens ring available in 4 weeks? I personally wouldn't mind to have the ring cover the focus distance and the AF/MF switch (The plastic insert probably needs some depressions to go over the switches). or if that fails, could you post a list of inner diameters for all the R1 rings (or put them actually in the product descriptions), so users can pick the next best: making a plastic inner ring isn't difficult, the nice fitting outer aluminium is difficult.

without having a lens in hand, I have no idea where our existing metal rings will fix.
So, don't count on me if you need it urgently. Our multi-row NNs are the way to go.

I would just like to see how it would fit in a ring R1... and still use the zoom. The lens dimensions are diameter 3.09 inches or 79mm. Length is 3.27 inches or 83mm. But where to place the ring to permit zoom ?